When there are multiple Budget Ledgers, there is no mechanism to identify which is the default budget to use through out the Acumatica application. In my situation there are 4 budget ledgers, 3 of which are intermediary review and approval of budgets. (BUDGET00, BUDGET01, BUDGET02). The final approved budget is the BFINAL Ledger, and is the one that needs to be used for reporting and else ware in the application. As it stands BUDGET01 is always the default budget ledger displayed / used.